Duster



FIG. 1 is a perspective view illustrating my design for a duster;

FIG. 2 is a side view of the embodiment of FIG. 4;

FIG. 3 is an inverted left side elevation view thereof;

FIG. 4 is a rear side view thereof; and,

FIG. 5 is a front side view thereof.

The fringes are partially shown in FIGS. 2 and 3 for ease of illustration. The broken lines shown in FIGS. 2–4 illustrate portions of the duster that form no part of the claimed design. 

The ornamental design for a duster, as shown and described. 